Band-cutter and feeder.



I. F. LANGDON. BAND CUTTER AND FEEDER.

APPLICATION FILED DEC. 9.1911- Patented Apr. 2, 1918.

a SHEETS-SHEET 1- WITNESSES: Mm Q44.

J. F. LANGDON.

BAND CUTTER AND FEEDER.

APPLICATION mm 050. 9. m1.

1 ,26 1,562. Patented Apr. 2, 1918.

3 SHEETS-SHEET 3.

WITNESSES: INVENTOR .fobnfizaafim Wm WM UNITED STATES PATENT OFFICE JOHN F. LANGDON,- OF KANSAS CITY, KANSAS.

BAND-CU'T'TER AND FEEDER.

Appliatiofl filed Decelfibr 9, 1911.

To all whom it may concern.

Be it known that I, Jens F. LANGDDN, n citizen of the United States. residing at Kansas City, in the county of W andotte and State of Kansas, have invents certain new and useful Improvements in Band-Cut ters and Feeders; and I do declate the fol lowing to be a, full, clear; and exact de scription of the invention; such as wilI en able others skilled in the art to Whidlr'jfialppertains to make and use the am rs-refines being had to the accompanying drawings, andto the letters and figs-res of reference marked thereon, which form at part of this specification.

My invention relates to a band mater and feeder for use in combinationwith thrash: in machines, and has for its principal objct; to provide a device of that chorsoter wherein the feedin mechanism.- is emeticei-lly retarded when the threshing mocha nism becomes eloggd or oi ''tchit ed, without interrupting the operation of t thfsh= ing inedian'ism.

It is a further object of the invention to provide means for fissistiri the Gjlindr teeth to carry material into t 6' concave, and particularly for meomplis'hinc this" purpose when t-lll' mechanism is overcfianged.

In accomplishing these objects, I have provided the improved details of structure hereinafter described and pointed out in the claims, reference being had to the accompanying drawings, wherein:-

Figure I is a perspective View of a feeder and band cutter constructed according to my invent-ion, with part of athreshing machine upon which my apparatus is parts of the machine and of the apparatus being broken away for better illustration.

Fi-g. II is a left hand elevation of the parts shown in Fig. I.

l-flig. III is a right hand elevation of same.

Fig. IV is an enlarged detail view of the governor n'ieclia nism.

Fig. V is a vertical section through shafts 11 and 39. as shown in Fi'g. Iii.

Fig. VI is a detail view of the governor actuating device.

Referring more in detail to the parts designates a part of a threshing gi'ia; hine. frame, 2 the concave, having teeth 3, and 4 the cylinder which is fixed on a shaft 3 and has the ordinary threshing teeth 6'. the

Spec'ificition of Letters Fatent.

Patented Apr. 2, 1918. semi No. 664,872.

cvlinder shaft 5 being revolubly mounted in containing an endless convefyer belt 9 which runs over roHi-s 10 on slia ts 11=11",' journeled in opposite ends of the frame.

RevoIu'bl' mounted in the feeder case is a shaft 12 w' ich extends over the inner end ofthe eyer and carries band cutting relives 13,- one mid of the shaft B'sisg 26- jcted lateral-1y from the case and prev (led with a pull? 14s and sproeket wheel 15. Shaft 12 is river: from the chresmsg' ayL finder shfift by it belt i6, which runs oi'er the pulley 14' 13nd over a ulley 17 011 the cylinder shaft.

Pi-votslly mounted on rojecting ends of shots 11- are ten a ms members 19 20, mi rvolnbl'y' mounted in the crews of said members is a shaft 21; which extends through arena! slots 22 in the feeder ease and across the case, close to the inner end of the conveyer. Crank; member's 19 20 are supported by l'mk's' 2a- --23' which are cet'ried on the free ends of arms 24-25, which fife pii otstlly mounted on a shaft extendin across the co'ni eye'r' ease, the a-rni' 24 being art of a bell c'rz'rn'k 26, the other arm; 27, of which is connected with a spring 28 c'iirried by a: turnbuckle 29 on a brit'clt'et 30 on the feeder case and adapted toyieldingly' retain the i-etarder shaft in the upper ends of the arena] slots 22.

Shaft 21 earri'es a; number of refiii'der blades 3*: which are adapted toreceive i'nalt'erial directly from the conveyer, and' over which the material must; pass to fac'h the thres'l'fi'ii cylinder.

Pii'r'ota Iy mounted on 2 block 32' on the feeder frm'ne is a lever 33, Having a heid 34 adapted for eng'a 'ement with the arm 25 to force the at owrrwerdly to Ipwve'r the refia'rdcr and hold same in Ioiver'ed positidn, sothan the come eimay be positively stopped by manna-i manipulation of the lever 33 although suchlever and its conn-eting fia'lt do not interfere with the auto magic adjustment of the retarder finder norme! working conditions.

Mounted on the bond cutter shaft 1 2 is a friction drive wliei' 35 of the can trolled type, preferably of the construction illustrated in my copending application filed April 17, 1911, Serial Number 621,499; the driven member of which is adapted to slip when overloaded.

lVheel has a sprocket wheel 36 connected by belt 37 with a sprocket wheel 38 which is revolubly mounted on a stub axle 39 on the feeder case.

Revolubly mounted on the axle 39 and rigidly connected with the sprocket wheel 38 (in a manner not shown) is a gear wheel 40 which meshes with the gear 41 on a hub 42 that is revolubly mounted on the conveyer shaft 11 and has a laterally turned edge flange 42. On the outer face of wheel 42 are a number of posts 43, carrying rollers 44.

Fixed on shaft 11 is a disk 45. Pivotally mounted on disk 45 is a dog 46, having an ear 47 extendin inwardly into position for engagement wit the rollers 44, and having a tongue 48 adapted for engagement with the hub of the disk, so that when the dog is engaged by one of the rollers the tongue will bind against the hub and a driving connection formed between the fixed disk and loose gear. 49 designates a spring which normally yieldingly retains the dog in its connecting position.

Secured, at one end, on a post 50 on the feeder casing, is a strap 51, which is passed over the flange 42 and is connected at its opposite end withthe retarder shaft 21, so that when the shaft is lowered the strap will act on the brake flange to stop the revolution of the feeder by retarding the travel of the friction drive wheel 35 on the cutter shaft 12.

Revolubly mounted in the sides of the feeder case and extending therethrongh, is a shaft 53, the ends of which project laterally from the sides of the case.

Fixed on one of the projecting ends of shaft 53 is a yoke 54, having an axle 55 mounted in the ends of its arms, and projecting laterally therefrom.

Pivotally mounted on the projecting ends of axle 55 is a yoke 56, having a shank 57 slidably projected through a bracket 58 on the feeder case. Surrounding the shank 57 and bearing against the bracket 58 and yoke 56 is a spring 59 which yieldingly tensions the yokes 56 and 54 toward the rear of the feeder. Revolubly mounted on axle 55 between the arms of yokes 54 and 56 is a band wheel 61 which engages the under or tight side of belt 16 and serves as a belt tightener.

Fixed on the end of shaft 53 opposite the belt tightener is a pawl 63 which is adapted for engagement with the under edge of an arm 64' that is ivotally mounted on the feeder case and has a tooth 65 on its free end adapted for locking engagement with the dog 46' when the arm lifted by the pawl 63, to hold said (log :50 that the rollers on the wheel 42 may pass thereover to enable the wheel to revolve without revolving the conveyor shaft.

Fixed on the hub 45, of disk 45, is a sprocket wheel 65, and running over said wheel and over a sprocket wheel 66 fixed on the retarder shaft 21, is a chain belt 68 which revolves the retarder shaft when the disk revolves, but leaves the retarder shaft idle when the disk is disconnected from its driving mechanism as described.

J ournaled in the feeder frame and extending above and slightly forward of the cylinder position is a crank shaft 70, having a sprocket wheel 71, driven from a sprocket wheel 15 on the cutter shaft by a belt 73. Pivotally mounted on the cranked portions of shaft 70 are beams 74, the upper ends of which are pivotally connected with a cross bar by links 76 so that they will have both vertical and forward and back movement. i 1

Fixed to the lower ends of the beams 74 are bars 77, the rear portion, 78, of which extend over the threshin cylinder and the forward portion of whic extend over the rear end-of the conveyer and carry blades 79.

In using the a paratus,. presuming the conveyor frame to. he mounted on the threshing frame and the. arts-to be assembled as described,the threshingcylinder, band cutting knives, and crank operated raking knives will operate constantly when the motor is active, the cylinder and band cutter knives performingtheir' usual functions and the rakingiknive's combing material from the conveyor. over the retarder and' onto the threshing cylinder,incidentally cutting any bands that may have passed the primary knives, and breakin up the mass of material so 'that it may Es better treated by the threshing parts. Owing to the elli tical movement of the rakes, their forwar ends will rise as they approach the conveyer on their forward movementand work downwardly and rearwardly on the return travel, so that the material is compressed as it passes over the retarder and approaches the cylinder. After the material has been delivered to the cylinder and the rakers start back to the conveyer, the u ward movement of the forward ends of the cnives is reversed in the rear ends thereof, so that such rear ends press the material onto the threshing cylinder and enable the cylinder teeth to get a better grip on the material and forward it into the concave. The pressure of the walking knives is especially advantageous when the cylinder teeth are dull or when damp or matted grain is being treated.

Under normal conditions the conveyer shaft 11 and retarder shaft 21 will he revolved with the threshing cylinder and knives, but should the machine be overcharged or a mass of damp or matted grain clog the cylinder, the retarder will be forced downwardly against the tension of the spring 28, thereby tightening the band 51 on the flange P2 and hold the wheel 42 so that the friction drive wheel 35 will slip, thus stopping the conveyer and retarder and allowing bars T7 to clear away the clogged mass. While the retarder remains depressed the rctardcr shaft and conveyer will be stopped, so that the supply of grain will be discontinued, the hand cutter and raking knives continuing to operate, however, until the mass of material has been combed off of the retarder into the cylinder.

\Vhen the overcharge or clogging has been relieved, the retarder will rise and the conveyer and retarder resume their normal operation.

Should the conveyer itself be overchar ed so that too great a mass of material is ed to the band cutter, the over-burden on the cutters will be transferred to the tight side of the belt 16, which will straighten under the strain and rock the belt ti htener against the tension of its spring. W en the tightener shaft 53 is rocked it lifts the pawl 63, which in turn lifts the arm 64 so that the tooth 65 holds the dog 46 while the stops on wheel 42 ride thereover and the wheel revolves idly and the conveyer and retarder are stop ed as described with reference to the hand brake.

A mass of material caught in the retardcr and cylinder teeth will be jerked downwardly by the faster moving cylinderteeth and lower the retarder, thereby actuating the governor to stop the conveyer and interrupt the feed until the parts are cleared.

The retarder may be set so close to the cylinder that an over charge on the cylinder will depress the retarder, so that the retarder teeth, when lowered will close the passage between same and the cylinder, thereby preventing the passage of any material into the concave until the cylinder teeth have chopped or shredded the material sufficiently to free the retarder and permit it to rise; it being apparent that while the retarder is depressed and the cylinder is chopping the mass, the feed from the conveyer will be interrupted through the friction drive mechanism.

It is apparent that as soon as the overburden on the belt 16 is relieved, the belt tightener will be returned to its normal position and the parts act as before.

Having thus described my invention, what i claim as new therein and desire to secure by Letterslatent is:

The combination with a threshing cyl inrlri, of a conveyer, a relarder interposed iieiween the conveyer and ilinder, a re 'in rocatory rake rockably mouub'd above the r-tgrrdm :mrl ylimlrr. and inn-ins (istlfbqf over and between the cylinder and retarder for actuating the rake to effect downward movement thereof in the direction of the rctardcr upon rearward travel of the rake and downward movement thereof in the direction of the cylinder and in the direction of travel of the cylinder upon forward tra \rl of the rake. to alternately press material against the retarder and cylinder.

3. The combination with a conveyer, of a retarder, a cylinder, a rake, longitndinalh and pivotally movable moans t'or supporting the rake intermediate its ends, mechanism disposed over and between the retarder and cylinder for actuating said supporting means to effect. movement of the forward part of the rake downwardly toward the retardcr upon rearward movement of the rake and movement of the rear part downwardly toward the cylinder upon the forward travel of the rake, for the purpose set forth.

3. The combination with a conveyer, of a threshing cylinder, an adjustable retarder, a band cutter, means for raking material from the retarder and pressing the same against the threshing cylinder, means for actuating the band cutter, the raking means and the threshing cylinder, means including a clutch for actuating the conveyer and rctarder, wherebv pressure on the retarder will break the clutch to interrupt travel of the conveyer and retarder, a link yieldingly supporting the retarder and a hand lever for actuating said link.

4. The combination with a conveyer, of a band cutter mechanism for driving the conveyer, comprising a clutch, a band cutter shaft, means for driving said shaft, comprising a belt, a roller mounting adjacent to said belt and adapted for positive actuation thereby, a roller carried in said amount ing, a spring for yieldingly tensioning said mounting toward the belt, and means operable by said mounting for actuating said clutch when said belt is tensioned.

5. The combination with a. conveyer, of a band cutter mechanism for driving the convcyer. comprising a clutch, a band cutter shaft. means for driving said shaft comprising a belt, a pivotally mounted arm adapted for actuating said clutch, a shaft having a member adapted for engaging said arm, a roller mounting on said shaft, a roller on said mounting engaged and adapted for ositive actuation by said belt, a. stationary block, a shank on said mounting adapted for sliding travel in said block, and a spring on said shank between the mounting and block. for the purpose set forth.

6. The combination with a conveyer. ha\'- in}. a drive shaft. fixed and loose members on said shaft. one of said members having fixed clutch devices and the other having a pivoted device adapted for normal driving ngagement with the tired denim, in-rid arm having a tooth adapted for engaging said pivoted device to break said driving engagement, a band cutter having a shaft, a belt for driving said shaft, a revoluble shaft having an arm adapted for rocking said pivoted arm, and a spring controlled member fastened on said shaft and engaging said belt and adapted for positive actuation by the belt.

7. The combination with a conveyer, of clutch mechanism for driving the conveyer, a band cutter and a threshing cylinder having driving shafts, band wheels on said shafts, a belt run over said band Wheels, a rock shaft. means on the rock shaft for controlling said clutch and a contact member mounted on said rock shaft and yieldingly tensioned against the tight side of said belt, for the purpose set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

JOHN F. LANGDUN.

Witnesses:

M. M. JACKSON, ARTHUR U. CAPS.

copiel of Hill patent may be obtained for five cents each. by addressing the "Commissioner of Patents,

Washington, D. 0. 

